MODEL: WRS
4: Pt 100 (JIS'97, IEC)
Dual Output Plug-in Signal Conditioners W-UNIT
(Usable range: -200 to +650°C, -328 to +1202°F; min.span: 50°C, 90°F)
5: Pt 50 Ω (JIS'81)
RTD TRANSMITTER
Functions & Features
(Usable range: -200 to +500°C, -328 to +932°F; min.span: 100°C, 180°F)
6: Ni 508.4 Ω
• Accepting direct input from an RTD and providing two
standard process signals
(Usable range: -50 to +200°C, -58 to +392°F; min.span: 30°C, 54°F)
0: Specify
• Linearization
Note: Consult M-System for 2-wire RTD
• Burnout protection
• "Active bridge" circuit containing two constant current
sources allows large leadwire resistances up to 200 Ω
• Isolation up to 2000 V AC
[2] OUTPUT 1
Current
A: 4 – 20 mA DC (Load resistance 600 Ω max.)
B: 2 – 10 mA DC (Load resistance 1200 Ω max.)
C: 1 – 5 mA DC (Load resistance 2400 Ω max.)
D: 0 – 20 mA DC (Load resistance 600 Ω max.)
E: 0 – 16 mA DC (Load resistance 750 Ω max.)
F: 0 – 10 mA DC (Load resistance 1200 Ω max.)
G: 0 – 1 mA DC (Load resistance 12 kΩ max.)
Z: Specify current (See OUTPUT SPECIFICATIONS)
Voltage
• Fast response type available
• LCD meter
• High-density mounting
Typical Applications
• Long distance transmission between the RTD and the
transmitter
• Combination with intrinsic safety barriers
• Power plant (2000 V AC isolation, 110 V DC power supply)
1: 0 – 10 mV DC (Load resistance 10 kΩ min.)
2: 0 – 100 mV DC (Load resistance 100 kΩ min.)
3: 0 – 1 V DC (Load resistance 1000 Ω min.)
4: 0 – 10 V DC (Load resistance 10 kΩ min.)
5: 0 – 5 V DC (Load resistance 5000 Ω min.)
6: 1 – 5 V DC (Load resistance 5000 Ω min.)
0: Specify voltage (See OUTPUT SPECIFICATIONS)
50
(1.97)
80
(3.15)
136
(5.35)
[3] OUTPUT 2
Current
mm (inch)
A: 4 – 20 mA DC (Load resistance 350 Ω max.)
B: 2 – 10 mA DC (Load resistance 700 Ω max.)
C: 1 – 5 mA DC (Load resistance 1400 Ω max.)
D: 0 – 20 mA DC (Load resistance 350 Ω max.)
E: 0 – 16 mA DC(Load resistance 430 Ω max.)
F: 0 – 10 mA DC (Load resistance 700 Ω max.)
G: 0 – 1 mA DC (Load resistance 7000 Ω max.)
Z: Specify current (See OUTPUT SPECIFICATIONS)
Voltage
MODEL: WRS–[1][2][3]–[4][5]
ORDERING INFORMATION
• Code number: WRS-[1][2][3]-[4][5]
Specify a code from below for each of [1] through [5].
(e.g. WRS-4AA-B/E/BL/Q)
• Temperature ranges (e.g. 0 – 500°C)
• Special output ranges (For codes Z & 0)
• Specify the specification for option code /Q
(e.g. /C01/S01)
Same range availability as Output 1
[4] POWER INPUT
AC Power
Note: When the user requires a current and a voltage
output, specify the current to be the Output 1 which allows
a greater load.
B: 100 V AC
C: 110 V AC
D: 115 V AC
F: 120 V AC
[1] INPUT RTD (2- or 3-wire)
1: JPt 100 (JIS'89)
G: 200 V AC
H: 220 V AC
J: 240 V AC
(Usable range: -200 to +500°C, -328 to +932°F; min.span: 50°C, 90°F)
3: Pt 100 (JIS'89)
(Usable range: -200 to +650°C, -328 to +1202°F; min.span: 50°C, 90°F)
DC Power
WRS SPECIFICATIONS
ES-2214 Rev.8 Page 1/3
http://www.m-system.co.jp/